Eighth Fort, Lithuania

The construction of the Eighth Fort began in 1889, after the first seven forts of Kaunas Fortress had already been designed and constructed. The earlier forts did not form a fully enclosed defensive ring around the city of Kaunas, and so the Eighth Fort was built to protect against attacks from the northwest. Although the earlier forts were constructed in red brick, the Eighth Fort is made from concrete and covered in soil. It was also the first fort of Kaunas Fortress to be equipped with electricity, which was provided via an oil-powered generator. Remains of it are now located under the water.

During World War I, the fort’s crew detonated the ammunition remaining in storage before retreating. The blast severely damaged the fort and its drainage system, resulting in the flooding of much of the structure but creating unique dive spot inside of the city. 

Best time for visit is April – December but accessible all year round. Late winter could be additionally covered in ice and in spring time visibility could be lower due to seasonal flooding. 

Maximum depth is 5,5 meters, average 2 – 3 meters. There is no possibility to do a tank refill at site but can be organized in Kaunas. Guidance, if needed is possible with some time planning in advance. Usually one dive is sufficient to see everything.